问题
recyclerView.addOnItemTouchListener(new MyListClickListener(getContext(), new MyListClickListener.ClickListener() { @Override public void onClick(View v, int position) {
TextView textView = (TextView) v.findViewById(R.id.title);
Fragment fragment = ((MyPagerAdapter) viewPager.getAdapter()).getFragment(1);
FragmentTransaction ft = getFragmentManager().beginTransaction();
ft.detach(fragment);
fragment.onDestroy();
ft.attach(fragment);
ft.commit();
comm.sendData(String.valueOf(textView.getText()));
viewPager.setCurrentItem(1);
}
}));
public class MyListClickListener implements RecyclerView.OnItemTouchListener {
private GestureDetector gestureDetector;
ClickListener clickListener;
public MyListClickListener(Context context, ClickListener clickListener){
this.clickListener = clickListener;
gestureDetector = new GestureDetector(context,new GestureDetector.SimpleOnGestureListener(){
@Override
public boolean onSingleTapUp(MotionEvent e) {
return true;
}
});
}
@Override
public boolean onInterceptTouchEvent(RecyclerView rv, MotionEvent e) {
View child = rv.findChildViewUnder(e.getX(),e.getY());
if(child!= null && clickListener!= null && gestureDetector.onTouchEvent(e)){
clickListener.onClick(child,rv.getChildPosition(child));
}
return true;
}
@Override
public void onTouchEvent(RecyclerView rv, MotionEvent e) {
}
public interface ClickListener {
void onClick(View v, int position);
}
}
回答1:
I think you are looking for ripple effect. Just create one xml file (ripple.xml) in drawable & write this code inside
<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
android:color="?attr/colorControlHighlight">
<item
android:id="@android:id/mask"
android:drawable="@android:color/white"
>
</item>
</ripple>
& just write two line in your another xml file in which you have declared recyclerview elements.
android:background="@drawable/ripple"
android:clickable="true"
Like in my case i am having only TextView and in parent tag i am declaring these two lines
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:orientation="vertical"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:background="@drawable/ripple"
android:clickable="true"
>
<TextView
android:id="@+id/textView_Username"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:textSize="30sp"
android:textColor="@color/colorPrimary"
android:layout_marginLeft="10dp"
android:layout_marginTop="10dp"
/>
</LinearLayout>
Finally the result:
See this video:
https://www.youtube.com/watch?v=qvVkDb7DqCk
回答2:
you have just add two Lines in Recyclar item layout root view
android:clickable="true"
android:foreground="?android:selectableItemBackground"
<LinearLayout
android:id="@+id/root"
android:layout_width="match_parent"
android:layout_height="30dp"
android:clickable="true"
android:foreground="?android:selectableItemBackground">
<TextView
android:layout_width="match_parent"
android:layout_height="20dp" />
</LinearLayout>
来源：https://stackoverflow.com/questions/34243426/recycler-view-item-it-is-not-showing-ripple-effect-touch-highlight-i-applied-li